The GUID Partition Table (GPT) is a method of partitioning disks. It features up to 128 partitions by default and it uses 64-bit pointers, which means it fully supports disks of up to 8ZiB, as opposed to the 2TiB limit of the older Master Boot Record (MBR) partitioning scheme. GPT is most often used ...

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Unable to mount a partition of external 3TB hard drive..GPT warning

My external HDD has five partitions and I am able to mount 4 partitions except one (labeled office) which is of 1TB and has all my backups. I am providing more information below fdisk -l Disk /dev/...
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Problem with the installation on ubuntu 14.04 LTS

I had a computer running Windows7 and wanted to change to Ubuntu. So I installed the 14.04 LTS version and all seemed to have gone cool. (I'd like to make clear that I want just Ubuntu in the ...
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Two partition tables are unrecognized

While trying to installing Ubuntu 14.04 as my sole operating system, I've been encountering a number of issues (Described in more depth at Ubuntu 14.04 installation crashes with "???" ...
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Delete Ubuntu from dual boot Windows 8.1 in GPT disk [duplicate]

I'm using Windows dual booting with Ubuntu. I have uninstalled, and at that time my disk was formated as MBR. After deleting all partitions of Ubuntu I choose to rebuild the MBR in my disk. That way ...
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/dev/sdb contains GPT signatures, indicating that it has a GPT table. However, it does not have a valid fake msdos partition table, as it should [duplicate]

When I open gparted, I get the following warning: /dev/sdb contains GPT signatures, indicating that it has a GPT table. However, it does not have a valid fake msdos partition table, as it should....
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Dual boot Windows 7 UEFI Raid with Ubuntu 14.04 Grub2 Problem

I used the intel Raid 0 to raid SSD #1 and #2 on raid 0 for video editing work, everything was good.I installed windows 7 64bit on an asus x79 deluxe motherboard on these raid 0 two ssds using UEFI+...
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Problem installing Ubuntu On Mbr disk Scheme not GPT

I'm having trouble installing Ubuntu on my Mbr disk scheme with windows 7 already installed on UEFI Legacy mode but when trying to manual specify partition for installation i found 3 more partitions ...
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how to factory reset a usb?

How do you factory reset a usb? I have a hp 4gb usb that seems like it has a messed up partition table and ubuntu isn't recognizing all the space. I've tried formatting it in disks. That doesn't work....
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GPT talbe corrupt after RAID1 setup

So I'm completely new to Ubuntu and am trying to set up a backup/media server at home. I saw the guide on Lifehacker and figured I'd give it a try. My system is an i3 3225 on an Intel DH77DF mobo ...
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Unable to install Ubuntu 14.04 LTS on Sony VAIO T-Series laptop

I have a Sony VAIO T-Series (SVT15117CDS) laptop that came pre-installed with Windows 8. After having the computer for a while, I updated it to Windows 8.1. I now want to put Ubuntu 14.04 LTS onto the ...
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Completely messed up grub/efi/gpt dual boot

I seem to have almost entirely screwed up my machine. I was attempting to install an ubuntu liveusb to my external hdd, but in the process I messed up my internal setup. The external one works ;) It'...
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how can I get rid of GPT if I want to install single boot Ubuntu

I have got my new laptop and want to install Ubuntu 14.04 on it(single boot system) from usb live disk. Since my disk is less than 1 TB, I want to have legacy boot and non-GPT partition. What can I do ...
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inconsistency in showing disk label

I've got my new laptop (thinkpad 440p) with windows 7.1 pre-installed and wanted to have single-boot ubuntu 14.04 on it. I wanted to change the disk partition table to "msdos" (legacy), so I change ...
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GParted claims whole hard drive is unallocated and gives warning about GPT table

For months I have been happily using my 3TB hard drive, and I still do. Today I discovered that GParted shows the whole drive (/dev/sdb) as being unallocated. The drive works fine though. Clicking for ...
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GPT partition scheme

I'm reinstalling my operating systems to use GPT and am willing to do it properly this time... I'm intending to use the following partition scheme: sda |-- sda1 500 MiB EFI |-- sda2 100 GiB Linux |-...
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Reliable UEFI GPT multiboot environment creation for Ubuntu on Thinkpads

Dear Ubuntu community members, I am planning on a fresh multiboot installation environment which initially includes Ubuntu for general open software development, Windows 7 pro and later on maybe ...
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2answers
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Install Windows 7 with Ubuntu in GPT UEFI mode

My computer is running Ubuntu on a disk in the markup GPT. Ubuntu runs mode UEFI (created FAT32 partition and boot loader was set there). Now I need to install Windows 7 as an alternative system for ...
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Would Ubuntu 13.10 work on unallocated space with Windows 8.1?

I've not been able to find this answer anywhere else. Are you able to install Ubuntu 13.10 alongside Windows 8.1 on unallocated space? I did this with Windows 7, but I had to cover all of those ...
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remounting read-only GPT filesystem as writable

I'm trying to read from a rescued macbook harddrive - here's the info from fdisk -l: Disk /dev/sdc: 250.1 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors ...
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How can I mount software raid drive mdX with fstab

I have raid5 configure with gpt partition to allow working with drive larger the 1.6 TB Ubuntu version is 12.04 and the md drive is 5TB. with: mount -t ext3 /dev/md129 /images mount works fine....
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441 views

USB Drive - Space missing after failed attempt to make it bootable

I was trying to make my USB drive bootable to install Arch (I used dd to write Arch ISO to the USB Drive) but the process was stopped half-way. The drive stopped responding so I tried sudo dd if=/dev/...
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221 views

Installing 13.10 alongside preinstalled Windows 8

I followed this guide to a T: http://www.everydaylinuxuser.com/2013/09/install-ubuntu-linux-alongside-windows.html However, when I get to step 6, I just see my /dev/sda and it says it's completely ...
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No USB Devices picked up on restart to windows 7 from ubuntu

I have dual boot windows 7 and ubuntu 13.10 on efi Dell Inspiron 14z 5423 ultrabook. My devices are recognized well in Ubuntu. If I reboot the system (i,e switch from Ubuntu to Windows 7) and start ...
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Can't boot into Windows 7 EFI GPT after recovery operation

My question, or rather issue, is in the extent of this previous case in which I wanted to grow my Linux (ext4) partition. The partition /dev/sda6 was in the way of doing this and since it contained ...
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GParted and Ubuntu installer does not recognize Windows partition, but Ubuntu does

So, I'm trying to set up a dual-boot of Windows 7 Ult 64-bit with Ubuntu on my computer. The computer has UEFI firmware and originally came with Win 8. It has a 16GB SSD and a 1TB HDD. I intend for ...
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UEFI Dual-Boot - Ubuntu 12.04.3 + Windows 8.1 (One GPT HDD)

UEFI Dual-Boot - Ubuntu 12.04.3 + Windows 8.1 (One GPT HDD) Hello, I'm having trouble setting up a dual-boot (Ubuntu 12.04 LTS and Windows 8.1) in my ASUS K55VM laptop's hard drive disk (500 GB). I ...
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Trying to remove leftover GPT Data using Fixparts

So i have a laptop that come with windows 8, like others i dislike it with passion, installed windows 7 over the top (i assumed it would atleast wipe the MBR properly but i dont think so anymore. ...
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353 views

How can I install Windows 7(64) after having already installed Ubuntu(64) ? The Windows install manager says it can't install on a GPT drive

I installed Ubuntu(64) on a partition of my 1TB drive. I left 200gb formatted on NTFS to install Windows 7(64) later and 600gb of free space. When I get to the part of selecting the partition to ...
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1answer
765 views

Partition for dual boot UEFI for Windows and Ubuntu

What should be the scheme partition table for two OS. Windows 8 and Ubuntu in UEFI mode. When i installed Windows 8 i have three partition: 1 - MSR 2 - Recovery 3 - EFI boot I need to create that ...
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291 views

Can I restore GPT info from MBR ?

I had a problem where my ubuntu installer would not recognize my windows partition, so i looked it up, and someone suggested 'zapping' GPT from my hdd with sudo gdisc /dev/sdb followed by x, z, y, n. (...
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139 views

rollback GPT after failed 13.10 installation

Upon trying to install Ubuntu 13.10 x64 in EFI mode on /dev/sda8 over an earlier (also failed) 13.04 64bit partition, I selected the partitioning option: "Replace existing Ubuntu 13.04 installation" ...
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3TB HDD and legacy BIOS

I have new 3TB HDD and motherboard with legacy BIOS. To take advantage of full HDD capacity I have to use GPT partition table. I want to dual-boot Windows 8.1 and Ubuntu 13.10 (64-bit) from this HDD. ...
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Can't format or delete partitions in pendirve cause of gpt table error

This is what I got while trying to format a partition in my pendirve: Error deleting partition /dev/sdb1: Command-line `parted --script "/dev/sdb" "rm 1"' exited with non-zero exit status 1: Warning: ...
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1answer
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Problem during Install

I currently have Windows 7 installed on my Dell Inspiron 15R 5537 laptop. I'm facing this issue while trying to install Ubuntu: I click on Yes, I click No... and nothing happens. Any ideas?
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3answers
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Ubuntu 13.10 installer (alongside windows 8) and gpt partition

I found several answers regarding that issue but I'd still like to get some confirmation on how to behave in this situation. I bought a quite recent laptop with a pre-installed Windows 8 on a 128Gb ...
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1answer
13k views

Ubuntu USB won't boot - “Missing Operating system”

I have an ASUS G75VW with UFEI. Since I bought it, it has been a pain in the ass to get Ubuntu working beside Windows. I finally made it but this week I decided it was time for a new install and after ...
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Dual boot windows 8 (UEFI / GPT) with Ubuntu and boot-repair

I'm asking this question because it seems like every single answer is install Ubuntu breaking windows 8 -> boot from live cd -> run boot-repair -> done. What happens when boot repair won't work? I ...
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Dual boot on seperate hard drives - Windows 7 MBR and Ubuntu GPT

My question is simple. I currently have Windows 7 (64-bit) installed on a SSD MBR partition. I also have a 3TB HDD that I am splitting between extra Win-7 storage and what will hopefully be an Ubuntu ...
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1answer
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How to add Ubuntu to the Windows 8 Boot Menu with a GPT Harddrive

I would like to know how to add Ubuntu to the Windows 8 Boot Menu using bcdedit. I have UEFI with secure boot enabled and both OS's can be booted from the UEFI boot menu by pressing F9. I also have ...
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1answer
471 views

fix the partition indexes OR fix ubuntu EFI

I have a GPT partition table. when i tried to repair the disk on my mac os x 10.9 it deleted the efi partition. I already created it manually but i have a problem: 1- the efi partition instead of ...
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Is it safe to format msftres, msftdata and hidden partitions?

I have an acer V7 which came with a 1TB HDD, 24GB SSD and Windows 8 installed. I have installed Ubuntu onto the SSD and formatted the main partitions of the HDD. However, I also notice 3 other ...
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2answers
7k views

Grub2 cannot detect Windows 8 [duplicate]

At installation it did not detect Windows. I mounted the Windows partition and have run os-prober with no results returning. I am able to boot Windows or Ubuntu by specifying the partition in UEFI ...
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1answer
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Install grub2 on UEFI GPT,create /boot partition and transfer clonezilla image

I would like to do the following: Given: A Windows system on GPT and UEFI with unallocated space on which one wishes to deploy Ubuntu An ubuntu partition, and seperate partitions for /boot and swap ...
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How to create GPT partitioned bootable USB for uefi? I am on ubuntu and am trying to get back to windows

Basically I am trying to get back to windows so I can play league of legends on this pc. Any and all help is appreciated. I am not enjoying playing on ubuntu with playonlinux.
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Can't remove GPT data from MBR

I am having difficulty getting the Ubuntu installer (and gparted) to recognize the partitions on my MBR type disk. Other operating systems and disk tools read the disk structure and the files on it ...
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1answer
898 views

Boot existing ubuntu installation on uefi, GPT BTRFS

I have looked through many of the questions, and haven't found anything that quite satisfies this problem. I have an ssd hard drive that is bootable from my old computer. It is a standard BIOS, ...
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Convert from EFI to BIOS boot

I have a Samsung Notebook NP900X4C with an LUKS encrypted installation of Linux Mint 15 on it. The system is booting in UEFI mode. The problem is that the samsung-notebook kernel module is disabled ...
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What went wrong with this partition mount?

Error mounting /dev/sda2 at /run/media/Juno/Two: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,dmask=0077,fmask=0177" "/dev/sda2" "/run/media/aunshi/Two"' exited ...
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1answer
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Warning: The Partition is misaligned by XXX - Revisiting this question

I know this has been addressed, but I still have a question: I recently bought a WD 4TB Green hard drive to use as one of my data backups. I made a single partition using GUID instead of MBR. My GUI ...
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How to remove the limit of a maximum of 16 partions at installation of 12.04 on GPT layout HDD

When I partition the HDD with Gparted (from 12.04 installation media), it encounters an error when trying to format partition named sda16. The error message reads: mkdosfs: Device partition expected, ...